Flights UA1549 07:20 daily · UA2366 12:15 daily · UA1178 14:51 daily · UA331 16:55 Mo Tu We Su
Direct flights from Houston (IAH) to Washington (IAD): 50 nonstop departures observed each week across 1 airline. 100% of the last 13 tracked flights arrived within 15 minutes of schedule. The median arrival is 16 minutes early. No cancellations were recorded across the 14 tracked flights. The nonstop covers 1,913 km, an estimated 2 hours 57 minutes in the air. Measured by Pro Flight Search from live flight boards at Houston and Washington. Updated 29 October 2026 at 09:23 UTC.
Today, IAH → IAD
Thu 29 Oct · local times- 07:22 UA1549United On scheduleGate E8 · TC ·
- 11:55 UA2366United On scheduleGate E18 · TC ·
- 16:45 UA2388United On scheduleGate C11 · TC ·
- 18:40 UA1373United Sched 18:40Departure not confirmed by the board ·
- 20:38 UA750United Sched 20:38Departure not confirmed by the board ·
Checked IAH board 04:23 · IAD board 23:54
of the last 13 tracked IAH → IAD flights arrived within 15 minutes
Median arrival delay is −16 min. 0 of 14 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
The week
scheduled departures · origin local timeEach mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Conditions are tightest at IAD: a 31% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +5 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Houston to Washington route actually runs
Pro Flight Search records official board updates for nonstop IAH to IAD flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: Houston (IAH) to Washington (IAD) route reliability, measured from operated flights on official airport boards.
https://proflightsearch.com/search-flights/IAH-IAD
IAH to IAD questions
Is IAH–IAD running on time right now?
Mostly on schedule. The departure side at IAH is the weaker end, route health score 76/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IAH–IAD?
Operators schedule morning departures around 07:20 and evening departures around 20:20 from IAH. Earlier flights typically land before destination-airport delays accumulate later in the day; check the IAD delay card to confirm conditions when you'd arrive.
How long is the flight from IAH to IAD?
Great-circle distance is 1,913 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 165–194 min gate-to-gate on this route.
How often does IAH–IAD fly?
United Airlines runs the route with about 50 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.